Down dog is a resting pose. If it doesn’t feel that way, you have some adjusting to do.

Typically, people are bearing too much weight in their arms instead of their feet, and not reaching their chest back towards their thighs enough. Also, people tend to get “trapped in their traps” by squeezing their shoulders up to their ears. And if you don’t get your hands right, you could hurt your wrists, exacerbate carpal tunnel or worse.